EP0992722A2 - Garniture mécanique d'étanchéité - Google Patents

Garniture mécanique d'étanchéité Download PDF

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Publication number
EP0992722A2
EP0992722A2 EP99109200A EP99109200A EP0992722A2 EP 0992722 A2 EP0992722 A2 EP 0992722A2 EP 99109200 A EP99109200 A EP 99109200A EP 99109200 A EP99109200 A EP 99109200A EP 0992722 A2 EP0992722 A2 EP 0992722A2
Authority
EP
European Patent Office
Prior art keywords
ring
bellows
mechanical seal
seal according
slide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99109200A
Other languages
German (de)
English (en)
Other versions
EP0992722B1 (fr
EP0992722A3 (fr
Inventor
Kenji Nakano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carl Freudenberg KG filed Critical Carl Freudenberg KG
Publication of EP0992722A2 publication Critical patent/EP0992722A2/fr
Publication of EP0992722A3 publication Critical patent/EP0992722A3/fr
Application granted granted Critical
Publication of EP0992722B1 publication Critical patent/EP0992722B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/36—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member connected by a diaphragm or bellow to the other member
    • F16J15/363—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member connected by a diaphragm or bellow to the other member the diaphragm or bellow being made of metal

Definitions

  • the invention relates to a mechanical seal, comprising a mechanical seal and a counter ring, the slide ring and the counter ring with each other Sealing surfaces relatively rotatable and spring-loaded with axial Touch the preload to seal and take the slide ring and one rotatably arranged housing in each case one end face of an axially Direction extending bellows are sealingly assigned.
  • the invention has for its object a mechanical seal to develop in such a way that the Manufacturing costs significantly reduced due to simplified manufacturability can be.
  • one of the end faces of the bellows the slide ring and the other face of the bellows non-adherent to the housing force and / or is positively assigned.
  • the end faces of the bellows with the Slide ring and the housing are jammed, there is a Much easier to manufacture the mechanical seal.
  • the individual parts of the mechanical seal in a repair are very easy to replace.
  • the bellows and / or the slide ring to be replaced will simply be the non-stick Connection in the area of the end faces of the bellows released, which too Renewing parts are exchanged and the new components again attached without adhesion. This minimizes repair costs reduced.
  • the Connection between slide ring and bellows by means of a first Bearing rings made of polymeric material, the sliding ring at least partially encloses the outer circumference, the first Bearing ring is surrounded by a clamping ring with a radial distance and wherein in the gap formed by the distance, the first end face of the Bellows is clamped and thus positioned and sealed.
  • a polymeric material for example FKM (Fluoropolymer) existing first bearing ring is advantageous in that the slide ring, mostly made of coal, is not immediately from the first Front of the bellows and / or a mostly metallic clamping ring is touched.
  • the brittle and therefore sensitive slide ring is due to the Use of the first bearing ring before partial, the service life reducing high mechanical loads largely protected.
  • the Mechanical seal thus has consistently good Characteristics during a long period of use.
  • the first bearing ring preferably has a reinforcement that is completely from polymeric material is enclosed.
  • the reinforcement mostly consists of Steel and is for example in front of the complete casing Corrosion protected by the medium to be sealed.
  • the reinforcement causes a greater stiffness of the first bearing ring and thereby one improved sealing between those to be sealed against each other Clearing.
  • the first bearing ring can face the opposite side of the counter ring In addition, cover the slide ring essentially completely.
  • the sealing surface between the slide ring and the first bearing ring significantly enlarged, so that there is a excellent static sealing results. Due to the large area Sheathing the slide ring by the first bearing ring is the most sensitive Excellent protection of the surface of the slide ring.
  • the second end face of the bellows can be an axial flange of the housing enclose on the outside and by a retaining ring under radial Preload must be clamped, preferably without additional insertion a sealant between the axial flange of the housing and the second Front side of the bellows.
  • the radial bracing of the face with the Axial flange through the retaining ring is structurally easier than a bracing of the components in the axial direction. It is also an advantage that movements of the bellows in the axial direction have no influence on the relative assignment of the face of the bellows, the axial flange and the Have retaining rings to each other.
  • the clamping ring and the retaining ring preferably each have one Radial projection on the mutually facing sides of the Radial projections under elastic axial preload of one Compression spring are touched.
  • the bellows and the compression spring are in arranged a functional parallel connection. Mechanical seals, where the axial preload between the slide ring and The counter ring is caused exclusively by the bellows itself With regard to consistently good usage properties in a wide range Temperature range unsatisfactory.
  • the material of the bellows is primarily dependent on the medium to be sealed and consists preferably of a stainless steel.
  • the spring force of the bellows is not according to the design of the required area of application Mechanical seal remains the same. To ensure a good seal, it is therefore necessary to provide an additional compression spring that preferably also consists of a stainless steel.
  • the mating ring can be made of polymer by means of a second bearing ring Material in a groove-shaped form that is open axially in the direction of the slide ring
  • a driver can be arranged, the driver is rotatably fixed on a shaft to be sealed.
  • the second bearing ring like the first bearing ring, is made of FKM and is primarily for sealing between the mostly silicon carbide existing mating ring and that of a metallic material existing carriers provided. Also be Manufacturing tolerances of the counter ring and / or the driver balanced by the second bearing ring.
  • the second bearing ring is - as well like the first bearing ring - preferably angular and covered preferably the outer circumferential surface of the counter ring and that of the slide ring facing away completely.
  • the mechanical seal consists of a slide ring 1 made of carbon, which is with its flat sealing surface 3 on the sealing surface 4 of the counter ring 2, the Silicon carbide is elastic and sealing under axial preload supports.
  • Both the slide ring 1 and the counter ring 2 are on the outer peripheral side and in the region of their end faces 13, 25 facing away from one another each enclosed angular bearing ring 9, 21.
  • the first and the second bearing ring 9, 21 are made of the same material and consist in this embodiment from FKM.
  • the metallic components of the mechanical seal consist of this Embodiment each made of a stainless steel against the medium 26 to be sealed is resistant.
  • the counter ring 2, the second bearing ring 21 and the driver 23 form one Pre-assembled unit that rotates with the shaft 24 to be sealed connected is.
  • the slide ring 1, the first bearing ring 9, the clamping ring 10, the bellows 8, the housing 5 and the retaining ring 15 and the compression spring 20 are mutually also assigned non-rotatably.
  • the compression spring 20 and the bellows 8 are in one another assigned functional parallel connection and cause a elastic pressure of the sealing surfaces 3 and 4 of slide ring 1 and Counter ring 2 to each other in the axial direction.
  • the first end face 6 of the bellows 8 is the slide ring 1 and the second End face 7 of the bellows 8 non-adherent to the housing 5, in this Embodiment exclusively assigned non-positively.
  • the end faces 7, 8 of the bellows are only clamped both assembly and disassembly of the mechanical seal much simplified.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Sealing (AREA)
EP99109200A 1998-10-07 1999-05-10 Garniture mécanique d'étanchéité Expired - Lifetime EP0992722B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19846153 1998-10-07
DE19846153A DE19846153C1 (de) 1998-10-07 1998-10-07 Gleitringdichtung

Publications (3)

Publication Number Publication Date
EP0992722A2 true EP0992722A2 (fr) 2000-04-12
EP0992722A3 EP0992722A3 (fr) 2001-02-07
EP0992722B1 EP0992722B1 (fr) 2008-05-07

Family

ID=7883673

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99109200A Expired - Lifetime EP0992722B1 (fr) 1998-10-07 1999-05-10 Garniture mécanique d'étanchéité

Country Status (4)

Country Link
US (1) US6338489B1 (fr)
EP (1) EP0992722B1 (fr)
JP (1) JP3309085B2 (fr)
DE (2) DE19846153C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2554881A3 (fr) * 2011-08-05 2013-02-27 Andritz AG High temperature seal

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6805357B2 (en) 2001-05-18 2004-10-19 Freudenberg-Nok Gp Bellows face seal assembly
JP4180832B2 (ja) * 2002-04-24 2008-11-12 イーグル工業株式会社 メカニカルシール装置
US6830262B2 (en) * 2002-07-11 2004-12-14 Autoliv Asp, Inc. Inflatable airbag deployment guide
JP4219374B2 (ja) * 2006-05-10 2009-02-04 Ｇｍｂ株式会社 メカニカルシール
US20080048400A1 (en) * 2006-08-28 2008-02-28 Freudenberg-Nok General Partnership Unitized seal with integral flanged sleeve
GB0805864D0 (en) * 2008-04-01 2008-04-30 Crane John Uk Ltd Internally pressurised seals
JP5514107B2 (ja) * 2008-07-07 2014-06-04 イーグル工業株式会社 メカニカルシール装置
US9447885B2 (en) * 2012-08-22 2016-09-20 Eagle Industry Co., Ltd. Double mechanical seal device
US8925928B2 (en) * 2012-11-28 2015-01-06 Ge Oil & Gas Esp, Inc. Mechanical seal with PFA bellows
CN104685273B (zh) * 2013-03-14 2016-07-06 日本伊格尔博格曼有限公司 机械密封装置
ITTO20130352A1 (it) * 2013-04-30 2014-10-31 Umbra Meccanotecnica Tenuta meccanica
JP7123916B2 (ja) * 2017-05-12 2022-08-23 イーグル工業株式会社 メカニカルシール
DE102022130415A1 (de) 2022-11-17 2024-05-23 Eagleburgmann Germany Gmbh & Co. Kg Gleitringdichtungsanordnung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0390243A2 (fr) 1989-03-28 1990-10-03 John Crane Uk Limited Joint mécanique

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2100220A (en) * 1935-12-04 1937-11-23 Gen Electric Shaft seal
US2590036A (en) * 1944-12-16 1952-03-18 Union Carbide & Carbon Corp Shaft seal
US2443151A (en) * 1945-03-01 1948-06-08 Crane Packing Co Rotary seal
US2984505A (en) * 1956-07-23 1961-05-16 Remi J Gits Jr Boot equipped telescoping seal
GB986217A (en) * 1963-02-06 1965-03-17 Crane Packing Ltd Bellows
FR1489776A (fr) * 1966-06-01 1967-07-28 I M A P Sa Perfectionnements aux dispositifs d'étanchéité pour pièces tournantes
US3554559A (en) * 1968-10-25 1971-01-12 Int Packaging Corp Seal
FR2279993A1 (fr) * 1974-05-30 1976-02-20 Nieto Edouard Dispositif de joint tournant
DE2545917A1 (de) * 1974-10-17 1976-04-29 Fenner Co Ltd J H Wellendichtung
US4378119A (en) * 1980-07-24 1983-03-29 Crane Packing Limited Mechanical face seals with special bellows
US4365816A (en) * 1980-10-29 1982-12-28 Eg&G Sealol, Inc. Self-damping bellows seal assembly
USRE32646E (en) * 1983-03-01 1988-04-19 Borg-Warner Corporation Mechanical seals with setting block for use with slurry pumps
US4424975A (en) * 1983-04-25 1984-01-10 The United States Of America As Represented By The United States Department Of Energy Rotary shaft seal
DE3626383A1 (de) * 1986-08-04 1988-02-11 Siemens Ag Dichtung
US4840384A (en) * 1987-09-04 1989-06-20 Vaughan Co., Inc. Face-type shaft seal with shroud
FI78973C (fi) * 1988-03-21 1989-10-10 Safematic Ltd Oy Anslutningskonstruktion foer faestande av en glidring till en monteringsdel.
DE3927589C2 (de) * 1989-08-22 1994-09-29 Kaco Gmbh Co Dichtungseinheit
US5199720A (en) * 1990-05-25 1993-04-06 John Crane, Inc. Split mechanical face seal
EP0547652A1 (fr) * 1991-12-11 1993-06-23 SKF Industrial Trading & Development Co, B.V. Pompe à eau
US5992901A (en) * 1995-10-27 1999-11-30 Mannesmann Ag Device for coupling a coolant duct of a rotating part
DE19637813C2 (de) * 1996-09-17 2001-12-06 Freudenberg Carl Fa Gleitringdichtung
US5797602A (en) * 1996-10-10 1998-08-25 Pac-Seal Inc. International Mechanical seal for water pump of heavy duty vehicle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0390243A2 (fr) 1989-03-28 1990-10-03 John Crane Uk Limited Joint mécanique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2554881A3 (fr) * 2011-08-05 2013-02-27 Andritz AG High temperature seal

Also Published As

Publication number Publication date
DE19846153C1 (de) 2000-04-20
DE59914747D1 (de) 2008-06-19
EP0992722B1 (fr) 2008-05-07
EP0992722A3 (fr) 2001-02-07
US6338489B1 (en) 2002-01-15
JP3309085B2 (ja) 2002-07-29
JP2000120881A (ja) 2000-04-28

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